The HIFIMAN Arya Stealth offers a refined audio experience, especially for listeners seeking a neutral sound signature with a touch of warmth. However, certain sound characteristics and design choices may not suit everyone. 

Build and Comfort

Headband:
The Arya Stealth features a rather lightweight design, weighing 430 grams, and incorporates a pressure strap for added comfort. The headband is well-distributed, making it suitable for extended listening sessions. However, it has a slight "plastic" feel that may detract from the premium experience some users expect.

Pads:
The large, teardrop-shaped earcups come with hybrid pads that provide ample space and comfort, even for those with larger ears. The pleather material used on the ear pads may divide opinions—some may appreciate its softness, while others might prefer a more premium material. The ear cups, while comfortable, may not form a perfect seal on smaller heads, which could impact the listening experience.

Weight and Clamp Force:
At 430 grams, the Arya Stealth is reasonably lightweight. The clamp force is balanced, offering a secure yet comfortable fit for extended periods. The articulating pivot joints on the gimbal enhance the fit, making the Arya Stealth a good choice for long listening sessions.

Audio Quality

Treble:
The treble on the Arya Stealth is lively, with a notable emphasis in the upper treble between 10-14 kHz. For listeners sensitive to treble, this peak can be harsh in certain tracks, especially those with bright female vocals. An EQ adjustment or a warmer audio chain is recommended to tame this brightness and avoid fatigue.

Bass:
The bass is impactful, offering a strong presence without overwhelming the midrange. It's weightier compared to previous HIFIMAN models, providing a satisfying low-end that complements the overall neutral tonality. However, it remains tight and controlled, avoiding the sluggishness found in some bass-heavy headphones. It also resonates well with EQ.

Tonality:
The Arya Stealth delivers a neutral tonal quality with a touch of warmth in the lows. The midrange is relatively linear, offering a clear and detailed sound. The treble is energetic, which adds excitement to the listening experience, though it might be too bright for some without EQ adjustments.

Imaging and Soundstage:
The Arya Stealth excels in imaging and dynamic range, providing a spacious and precise sound reproduction. The soundstage is wide and immersive, offering a sense of depth and separation that enhances the overall listening experience. The detail retrieval is very good, making it easy to pick out subtle nuances in the music.

Amplification

Power Requirements:
With a sensitivity of 94 dB and an impedance of 35 ohms, the Arya Stealth is relatively easy to drive. While it can be powered by portable devices, a good-quality amplifier is recommended to fully unlock its potential, particularly in controlling the treble and enhancing the bass.

Price

The headphone has dropped considerably in price, it can now often be purchased for around 729 €~.

Conclusion

The HIFIMAN Arya Stealth is a notable upgrade over previous models, offering an engaging listening experience with its impactful bass, neutral midrange, and lively treble. However, its bright treble might require some adjustments for treble-sensitive listeners. The lightweight construction and comfortable fit make it suitable for long listening sessions, though the design and material choices, such as the "plastic" feel and pleather ear pads, may not appeal to everyone. Overall, the Arya Stealth is a strong contender in its price range, but its specific sound profile and design may not suit all preferences.
Pros:
Incorporates innovative stealth magnet design for reduced distortion and improved acoustics.
Teardrop design with lightweight construction for comfortable, extended use.
Pressure strap and articulating pivot joints provide an adjustable and balanced fit.
Weightier and smoother house sound signature with impactful bass, neutral midrange, and lively treble.
Excellent imaging and dynamic range for spacious and precise sound reproduction.
Relatively easy to drive, with improved performance over the older Arya model.
Replaceable cable with standard 3.5 mm connectors.
Cons:
The cable could benefit from a softer jacket and longer length for home use.
Slight "plastic" feel in the build, which may not meet premium expectations.
Pleather ear pads—comfort may vary depending on personal preference.
Treble may be too bright in certain tracks without EQ adjustment.
Ear cups might not form a proper seal for those with smaller heads.